id:A147887 - OEIS Search Results

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Number of permutations of floor(i*7/4), i=0..n-1, with all sums of two adjacent terms unique.

+0
1

1, 2, 6, 24, 96, 528, 2418, 14676, 109882, 996240, 7675118, 67181516, 718155492, 8798220008, 93512144280, 1080953807952 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A152314 A152331 A152324 this_sequence A053502 A053504 A060725` `Adjacent sequences: A147884 A147885 A147886 this_sequence A147888 A147889 A147890`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Nov 17 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.